Mercedes-Benz GLS450 problems and complaints, 2017 to 2021
75 NHTSA owner complaints and 19 recalls across 3 model years, 2017 to 2021. Built from NHTSA owner complaints and recalls, generated October 26, 2026.
- 75complaints
- 19recalls
- 3reported crashes
- 10reported fires
- 2reported injuries
Which Mercedes-Benz GLS450 years should you avoid?
We cover 3 model years of the Mercedes-Benz GLS450, too few to say which stand out.
NHTSA does not publish sales figures, so these are complaint counts, not a rate per car on the road. A year that sold more cars collects more complaints, and older years have had longer to collect them.
Every model year
Most reported problem areas
Share of the 30 complaints sorted by system, all years together.
- Electrical & infotainment18 (60%)
- Steering, suspension & tires4 (13%)
- Structure & body3 (10%)
- Engine & powertrain2 (7%)
- Other systems2 (7%)
Recalls (19)
Electrical system · 24V207000 · Mar 2024 · model year 2021
An overheated ground connection can increase the risk of a fire.
Transmission · 24V118000 · Feb 2024 · model year 2021
An engine stall increases the risk of a crash.
Fuel system · 23V445000 · Jun 2023 · model year 2021
A loss of drive power can increase the risk of a crash.
Body & glass · 23V177000 · Mar 2023 · model year 2021
Water intrusion into the foot wells may cause corrosion and/or short circuits to electrical components, increasing the risk of fire. In addition, the emergency call (eCall) feature may be disabled and the doors may not unlock, increasing the risk of injury. Also, the engine may not start or may enter a limp-home mode, increasing the risk of a crash.
Safety · 22V732000 · Sep 2022 · model year 2021
A seat with a seatback lock failure may not properly restrain occupants, increasing the risk of injury during a crash.
Structure · 22V680000 · Sep 2022 · model year 2021
Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
Electrical system · 22V365000 · May 2022 · model years 2017, 2021
A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Electrical system · 22V231000 · Apr 2022 · model year 2021
An overheated electrical cable can increase the risk of a fire.
Body & glass · 21V832000 · Oct 2021 · model year 2021
Detached rear glass can become a road hazard, increasing the risk of a crash.
Safety · 21V354000 · May 2021 · model year 2021
A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
Safety · 21V072000 · Feb 2021 · model year 2017
A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Electrical system · 21V058000 · Feb 2021 · model years 2017, 2021
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Electrical system · 20V089000 · Feb 2020 · model year 2021
If the interior switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash.
Safety · 19V787000 · Nov 2019 · model year 2017
An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Brakes · 18V539000 · Aug 2018 · model year 2018
Reduced braking performance can increase the risk of a crash.
Suspension · 18V272000 · Apr 2018 · model year 2017
The leaking oil in the presence of an ignition source can increase the risk of a fire.
Safety · 17V816000 · Dec 2017 · model year 2017
If the door appears to be locked, the door may be unintentionally opened, increasing the risk of injury.
Airbags · 17V655000 · Oct 2017 · model year 2017
If the passenger's frontal air bag does not function as designed in the event of a crash, the front seat passenger has an increased risk of injury.
Safety · 17V077000 · Feb 2017 · model year 2017
In the event of a crash, if objects are not secured within the center console, they may strike the vehicle occupants, increasing their risk of injury.